Reinsman 645 Mullen, 5" mouth, 6" shanks. Research indicates a 645 is a pony bit, but with a 5" mouth this does not appear to be a pony bit. Marked 645 5CO. Like New Condition.
It's somewhat a risk to buy a used bit, if you don't know us and know our integrity, you might have reservations. So we offer a 10 day full money back guarantee, if you're not satisfied with the bit, return it to us within 10 days, undamaged, and we'll refund your money. The only thing you'll be out is the return postage.